Friend Classes in C++

Classes and Objects in C++

Your Name on Instagram: "A reel about innovative technology in Japan where "smart sidewalks" embedded with piezoelectric materials convert the kinetic energy from people's footsteps (walking, running, or jumping) into electricity. This generated power can light street lamps, power public screens, or monitor foot traffic. It's being tested in cities like Tokyo and Kyoto, promoting sustainable green energy and making every step contribute to the environment"

mralfa2m on Instagram: "In Japan, researchers are using smart walkways to turn everyday activities into clean energy 4.These roads are embedded with special piezoelectric material that can collect kinetic energy from pedestrians' footsteps. When people walk, run or jump, the road surface is slightly deformed, creating mechanical pressure. Piezoelectric crystals convert this pressure into electrical energy 8 This energy can be used to illuminate street lights, power public displays, and even moni

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